Gemstone



FIG. 1 is a top perspective view of a gemstone, showing my new design;

FIG. 2 is bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a top perspective view thereof, showing the gemstone arranged adjacent additional, exemplary gemstones.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a gemstone, as shown and described. 